<!DOCTYPE html>
<htm lang="zh-CN">
    <head>
        <title>index</title>
    </head>
    <body>
        <form action="/upload" method="post" enctype="multipart/form-data"> {{/*上传文件enctype需要选择这个*/}}
            <input type ="file" name="f1">
            <input type ="submit" name="上传">

        </form>
    </body>
</html>